CN207333759U - A kind of durable type Pneumatic single-seat regulating valve with strong leakproofness - Google Patents
A kind of durable type Pneumatic single-seat regulating valve with strong leakproofness Download PDFInfo
- Publication number
- CN207333759U CN207333759U CN201721446855.2U CN201721446855U CN207333759U CN 207333759 U CN207333759 U CN 207333759U CN 201721446855 U CN201721446855 U CN 201721446855U CN 207333759 U CN207333759 U CN 207333759U
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- China
- Prior art keywords
- valve
- valve rod
- seat
- sealing
- undersetting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- -1 steam Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
It the utility model is related to the technical field of valve, disclose a kind of durable type Pneumatic single-seat regulating valve with strong leakproofness, including valve body, valve seat, further include valve rod, the upper end of the valve body is fixed with undersetting, the upper end of undersetting is connected with upper bracket, and the upper end of upper bracket is connected with pneumatic actuator；The valve rod is assemblied in the undersetting by sealing mechanism, and one end of valve rod is connected with the push rod of the pneumatic actuator, and other end movable sleeve is equipped with branch sleeve；One end of the branch sleeve rotates and is provided with regulating nut, regulating nut is connected with the threaded stem, the other end is threaded with the spool to match with the valve seat, the adjusting slot to match with the valve rod is offered in spool, adjust in slot and be equipped with butterfly spring, inner sealing degree can not be ensured by solving existing valve and occurring spool abrasion after long-term use, and valve rod is in movement travel it cannot be guaranteed that the problem of sealing structure assembly difficulty of good sealing property and valve internal is big.
Description
Technical field
It the utility model is related to the technical field of valve, and in particular, to a kind of durable type with strong leakproofness is pneumatic
Single-seat adjusting valve.
Background technology
Valve is control unit in pipeline fluid transport system, it be for changing path section and media flow direction,
There is water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release etc..For the valve of fluid control, from simplest section
The only valve various valves used into extremely complex robot control system(RCS), its kind and specification are various.
Valve can be used for control water, steam, oil product, gas, mud, various Korrosionsmediums, liquid metal and radioactivity
The all kinds such as fluid fluidly flow, the super-pressure that the operating pressure of valve can be from 0.0013MPa to 1000MPa, work temperature
Degree is from -269 DEG C of ultralow temperature to 1430 DEG C of high temperature.
The control of valve can use a variety of kinds of drive, such as manually, electrically, surge, pneumatically, it is worm gear, electromagnetic driven, electro-hydraulic
Dynamic, air-or liquid-operated, spur gear, umbrella tooth wheel drive etc.；Can be under the action of pressure, temperature or other forms transducing signal, by pre-
Fixed requirement action, valve lifts it, slides by driving or automechanism, swing or rotary motion, so as to change it
The size of flow area is to realize its control function.With the use in existing industrial production for Pneumatic single-seat regulating valve more
Add extensively, Pneumatic single-seat regulating valve there are the defects of it is as follows：
1st, it is longer to be located at the transmission stroke of valve inner due to valve rod, cause between valve rod and the inside of valve body leakproofness compared with
Difference, it is impossible to ensure overall good sealing property；
2nd, since the spool of valve inner in the case where being subject to the percussion of fluid for a long time, it is especially in active sulfur
In the environment of body, spool will produce abrasion, but promote valve rod by using pneumatic actuator, and the stroke of valve rod is fixed, led
Cause that between spool and valve seat close cooperation can not be produced, so as to need replacing new spool, the use for reducing valve is resistance to
Expenditure and integral sealing precision；
3. leakproofness is poor between valve rod and the inside of valve body, when being assembled according to seal to valve rod, seal
Assembly difficulty it is higher, assembly difficulty is larger.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of durable type Pneumatic single-seat tune with strong leakproofness
Section valve to reach the overall durability of poppet, integral sealing precision inside poppet and optimize valve assembling it is difficult
The purpose of degree, solves existing valve and occurs spool abrasion later long-term and can not ensure inner sealing degree, valve rod is moving
It cannot be guaranteed that the problem of sealing structure assembly difficulty of good sealing property and valve internal is larger in stroke.
In order to realize above-mentioned technique effect, technical solution provided by the utility model is：It is a kind of with strong leakproofness
Durable type Pneumatic single-seat regulating valve, including valve body, the valve seat positioned at valve inner, it is characterised in that further include valve rod, the valve
The upper end of body is fixed with undersetting, and the upper end of undersetting is connected with upper bracket, and the upper end of upper bracket is connected with pneumatic actuator；Institute
State valve rod to be assemblied in the undersetting by sealing mechanism, one end of valve rod is connected with the push rod of the pneumatic actuator, separately
One end movable sleeve is equipped with branch sleeve；One end of the branch sleeve, which rotates, is provided with concentric regulating nut, adjusts spiral shell
Cap is connected with the threaded stem, and the other end is threaded with the spool to match with the valve seat, is offered in spool and institute
The adjusting slot that valve rod matches is stated, adjusts in slot and is equipped with butterfly spring.
Further, the sealing mechanism includes the sealing slot in undersetting, and sealing is socketed in seal groove hole
Upper sleeve gasket and lower sleeve gasket, the upper sleeve gasket and lower sleeve gasket, which seal, is socketed on the valve rod, and is cased with valve rod
Thrust spring between upper sleeve gasket and lower sleeve gasket.
Further, the first sealing ring, the end of lower sleeve gasket are equipped between the end face of the upper sleeve gasket and upper bracket
The second sealing ring is equipped between sealing slot.
Further, the end of the spool offers the countersunk head groove concentric with the adjusting slot, is equipped with countersunk head groove
Bearing, the inner ring of bearing are connected with the regulating nut.
Further, it is fixedly connected with the upper bracket and the matched seal sleeve of the valve rod.
Further, the side of the upper bracket is equipped with label ruler, be horizontally disposed with the valve rod have it is opposite with label ruler
The pointer answered.
Further, the valve body is equipped with left inlet and outlet and right inlet and outlet, and left inlet and outlet are arc with right inlet and outlet
Passage, and the inner connectivity part of left inlet and outlet and right inlet and outlet is equipped with the valve seat.
Compared with the prior art, the beneficial effects of the utility model are：
1. the application can realize branch sleeve along valve after fluid impact abrasion occurs in spool by turning regulating nut
The axis direction movement of bar, the movement of branch sleeve can produce corresponding displacement with movable valve plug, with adjusting spool relative to valve
The distance between seat, is realized under the impetus of pneumatic actuator, the cooperation between spool and valve seat is even closer, so as to solve
Spool abrasion occurs after long-term in valve of having determined can not ensure the problem of inner sealing is spent, relative to the prior art, it is not necessary to
Regularly replace spool, it is only necessary to after dismantling valve body, spool is adjusted, reduces the maintenance cost and Maintenance Difficulty of regulating valve
Degree；
2. when being assembled to valve rod, due to being socketed in the outer of valve rod in the form of upper sleeve gasket and lower sleeve gasket
Portion, it is only necessary to undersetting and upper bracket are subjected to fastening assembling, meanwhile, pass through thrust spring between upper sleeve gasket and lower sleeve gasket
Active force is provided, it is ensured that the end of upper sleeve gasket and lower sleeve gasket carries out sealing and support with upper bracket and sealing slot respectively
Tightly, it is not necessary to which accurate assembly precision can realize the honeybee assembling between valve rod and undersetting, relative to the prior art, simplify
The assembly difficulty of sealing structure；
3. due to the outside that valve rod is socketed in the form of upper sleeve gasket and lower sleeve gasket, and upper sleeve gasket and lower sealing
Active force is provided by thrust spring between set, ensures that valve rod sealing shroud in stroke motion process will not produce in fit-up gap
Raw play, ensures stability overall inside regulating valve and sealed precision.
Brief description of the drawings
Fig. 1 is the overall structure signal of the durable type Pneumatic single-seat regulating valve provided by the utility model with strong leakproofness
Figure；
Fig. 2 is the partial enlarged view (one) of Fig. 1；
Fig. 3 is the partial enlarged view (two) of Fig. 1.
Embodiment
The utility model is further described in detail with reference to specific embodiment, following word is intended to indicate that
The utility model, and unrestricted the scope of protection of the utility model.
As shown in Figure 1, Figure 2 and Figure 3, the utility model can be implemented as follows, a kind of resistance to strong leakproofness
With type Pneumatic single-seat regulating valve, including valve body 1, the valve seat 2 inside valve body 1, valve rod 3, the upper end of the valve body 1 are further included
Undersetting 4 is fixed with, undersetting 4 and the upper end end face seal of the valve body 1 are assembled, and the upper end of undersetting 4 is connected with upper bracket 5
And both contact surfaces are assembled by sealing, the upper end of upper bracket 5 is connected with pneumatic actuator 6, is connected with pneumatic actuator 6
Exhaust outlet 7；The valve rod 3 is assemblied in the undersetting 4 by sealing mechanism, one end of valve rod 3 and the pneumatic actuator 6
Push rod connection, other end movable sleeve is equipped with branch sleeve 8；One end rotation of the branch sleeve 8 is provided with concentric
Regulating nut 9, regulating nut 9 is threadedly coupled with the valve rod 3 and the outside diameter of regulating nut 9 is less than the upper end end of the valve body 1
Mouthful diameter, valve rod 3 are equipped with the thread segment to match with the regulating nut 9, for turning regulating nut 9 to realize it in valve
Displacement on 3 axis direction of bar, the other end is threaded with the spool 10 to match with the valve seat 2, when spool 10 and valve seat 2
, it can be achieved that the blocking that valve seat 2 is open, offers the adjusting slot to match with the valve rod 3, valve in spool 10 during mutual cooperation
Bar 3 can be slided in the inside for adjusting slot, adjusted in slot and be equipped with butterfly spring 11, be made in the elastic force of butterfly spring 11
With the threaded connection place of regulating nut 9 and valve rod 3, spool 10 and the threaded connection place of branch sleeve 8 mutually can be supported in real time
Tightly, the mounting stability of spool 10 is ensured.As preference, the spool 10 is set to semiellipsoid shape, ensure that spool 10 can
Valve seat 2 is fully sealed.
The sealing mechanism includes the sealing slot in undersetting 4, and sealing is socketed on the upper sealing in seal groove hole
Set 12 and lower sleeve gasket 13, the upper sleeve gasket 12 and lower sleeve gasket 13, which seal, is socketed on the valve rod 3, and is covered on valve rod 3
There is the thrust spring 14 between upper sleeve gasket 12 and lower sleeve gasket 13, the both ends of thrust spring 14 are pushed against sealing respectively
On the end face of set 12 and lower sleeve gasket 13；The first sealing ring 15 is equipped between the end face of the upper sleeve gasket 12 and upper bracket 5, on
Offer the first seal groove to match with first sealing ring 15 on the end face of sealing shroud 12, the end of lower sleeve gasket 13 with
The second sealing ring 16 is equipped between sealing slot, offers on the end face of lower sleeve gasket 13 and matches with second sealing ring 16
The second seal groove；First sealing ring, 15 and second sealing ring 16 is under the action of the thrust spring 14, upper sleeve gasket
Pushed against between 12 end face and upper bracket 5, push against between the end of lower sleeve gasket 13 and the bottom face for sealing slot, further carry
Rise the sealing performance inside regulating valve.
The end of the spool 10 offers the countersunk head groove concentric with the adjusting slot, and bearing 17 is equipped with countersunk head groove,
The outer ring of bearing 17 is fixedly connected with the madial wall of the countersunk head groove, and the inner ring of bearing 17 is connected with the regulating nut 9, with
Realize and produce relative rotation between regulating nut 9 and branch sleeve 8；On the other hand, it can also realize that spool 10 is subject to fluid impact
When, it can rotate, not interfere with threaded connection place or spool 10 and the branch sleeve 8 of regulating nut 9 and valve rod 3
The connective stability of threaded connection place；Furthermore it can also reduce the impact wear degree between spool 10 and fluid.
It is fixedly connected with the upper bracket 5 and the matched seal sleeve 20 of the valve rod 3, the endoporus of seal sleeve 20
Match with the valve rod 3, and the endoporus of seal sleeve 20 is equipped with sealing ring.
The side of the upper bracket 5 is equipped with label ruler 19, and the upper end of label ruler 19 is labeled with "ON", the lower end of label ruler 19
"Off" is labeled with, label ruler 19 is equipped with length dimension to weigh the displacement of 3 in the vertical direction of valve rod, so as to judge spool 10
Being horizontally disposed with relative to the openings of sizes of valve seat 2, on the valve rod 3 has pointer 18 corresponding with label ruler 19, and pointer 18 is logical
Screw is crossed to be fixedly connected on the side wall of valve rod 3.
The valve body 1 is equipped with left inlet and outlet and right inlet and outlet, and left inlet and outlet are curved channel with right inlet and outlet, arc
The fluid that passage is more advantageous to inside is flowed, and the inner connectivity part of left inlet and outlet and right inlet and outlet is equipped with the valve seat 2,
Valve seat 2 is embedded in the connectivity part, and valve seat 2 cooperates with the spool 10 to be realized to left the inner imported and exported with right inlet and outlet
Connectivity part is blocked.
Any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with right
It is required that subject to the protection domain.
Claims (7)
1. a kind of durable type Pneumatic single-seat regulating valve with strong leakproofness, including valve body, the valve seat positioned at valve inner, it is special
Sign is, further includes valve rod, and the upper end of the valve body is fixed with undersetting, and the upper end of undersetting is connected with upper bracket, upper bracket
Upper end be connected with pneumatic actuator；The valve rod is assemblied in the undersetting by sealing mechanism, one end of valve rod and institute
The push rod connection of pneumatic actuator is stated, other end movable sleeve is equipped with branch sleeve；One end of the branch sleeve rotates and is provided with
Concentric regulating nut, regulating nut are connected with the threaded stem, and the other end is threaded with and the valve seat phase
The spool matched somebody with somebody, the adjusting slot to match with the valve rod is offered in spool, is adjusted in slot and is equipped with butterfly spring.
2. the durable type Pneumatic single-seat regulating valve according to claim 1 with strong leakproofness, it is characterised in that described close
Sealing mechanism includes the sealing slot in undersetting, and sealing is socketed on upper sleeve gasket and lower sleeve gasket in seal groove hole, institute
State upper sleeve gasket and lower sleeve gasket and seal and be socketed on the valve rod, and be cased with valve rod positioned at upper sleeve gasket and lower sleeve gasket it
Between thrust spring.
3. the durable type Pneumatic single-seat regulating valve according to claim 2 with strong leakproofness, it is characterised in that on described
The first sealing ring is equipped between the end face of sealing shroud and upper bracket, it is close to be equipped with second between the end of lower sleeve gasket and sealing slot
Seal.
4. the durable type Pneumatic single-seat regulating valve according to claim 1 with strong leakproofness, it is characterised in that the valve
The end of core offers the countersunk head groove concentric with the adjusting slot, and bearing, the inner ring of bearing and the tune are equipped with countersunk head groove
Section nut is connected.
5. the durable type Pneumatic single-seat regulating valve according to claim 1 with strong leakproofness, it is characterised in that on described
It is fixedly connected with stent and the matched seal sleeve of the valve rod.
6. the durable type Pneumatic single-seat regulating valve according to claim 1 with strong leakproofness, it is characterised in that on described
The side of stent is equipped with label ruler, and being horizontally disposed with the valve rod has and the corresponding pointer of label ruler.
7. the durable type Pneumatic single-seat regulating valve according to claim 1 with strong leakproofness, it is characterised in that the valve
Body is equipped with left inlet and outlet and right inlet and outlet, and left inlet and outlet are curved channel with right inlet and outlet, and left inlet and outlet and right disengaging
The inner connectivity part of mouth is equipped with the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446855.2U CN207333759U (en) | 2017-11-02 | 2017-11-02 | A kind of durable type Pneumatic single-seat regulating valve with strong leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446855.2U CN207333759U (en) | 2017-11-02 | 2017-11-02 | A kind of durable type Pneumatic single-seat regulating valve with strong leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333759U true CN207333759U (en) | 2018-05-08 |
Family
ID=62364478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721446855.2U Expired - Fee Related CN207333759U (en) | 2017-11-02 | 2017-11-02 | A kind of durable type Pneumatic single-seat regulating valve with strong leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591500A (en) * | 2018-07-18 | 2018-09-28 | 天津万枫仪表有限公司 | Special alloy regulating valve applied to high-pressure minimum flow working condition |
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
-
2017
- 2017-11-02 CN CN201721446855.2U patent/CN207333759U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701320A (en) * | 2018-07-10 | 2020-01-17 | 奥塔玛株式会社 | Flow regulating stop valve for sanitation |
| CN108591500A (en) * | 2018-07-18 | 2018-09-28 | 天津万枫仪表有限公司 | Special alloy regulating valve applied to high-pressure minimum flow working condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |